醚的

Reaction of ketones with sodium diselenide and sodium hydrogen selenide under the catalysis of n-BuNH2 gave a moderate yield of diselenides in a "one-pot" fashion.

在正丁胺的催化下，酮与硒氢化钠、二硒化钠乙醇溶液通过&一锅&法反应得到了中等产率的二硒醚。

Tritici with MICs as 80 and 150μg/ml . The MICs of a main secondary metabolite of YS 4108, 3-methylphenol ether against Candida albicans, Tricophyton rubrum, Epidermophyton floccosum, Cunninghaghmella elegans and Aspergillus niger were 10, 30, 20, 20 and 50μg/ml, respectively.

来源于海洋真菌YS 4108的一个甲基酚醚表现出对白色念珠菌、红色毛癣菌、絮状表皮癣菌、雅致小克银汉菌和黑曲霉等五株人类病原真菌的良好抗菌活性，MIC分别为10、30、20、20和50μg／ml。

The results showed that solubility of nitrobenzenamine and etherate increased with temperature increasing.

实验结果表明硝基苯胺和醚化物在二甲苯和甲苯中的溶解度均随温度的升高而增加。

Solubility of nitrobenzenamine in ternary system was higher than that in binary system,but the solubility of etherate did not change.

与二元体系相比，硝基苯胺在三元体系的溶解度增加，但醚化物的溶解度未发生变化。

High elastic etherate is applied to foam on the spot in normal temperature and normal pressure,so as to form the foam whose inner surface is the same as that of the jade craftwork and whose foaming ratio is high.The profile is cutted by laser and its surface is electrostaticly woolimplanted.

采用高回弹组合醚在常温常压下现场发泡，成型出与玉器工艺品外形吻合、发泡倍率较高的泡沫体，用激光刀剖切并对剖切面及成型轮廓面进行静电植绒，做出了外形美观、减震效果优异的高档内包装。

Then,the core molecule was used as a coupling agent to condensate with polyethylene glycolsof different molecular weight or polyethylene glycol monomethyl etherin the presence of stannous octoate as catalyst and diphenyl ether as azeotropic agent to remove water.

在辛酸亚锡催化下，以二苯醚为共沸脱水剂，将三官能度小分子TMP-SK3作为偶联剂，进一步与不同分子量的端羟基聚乙二醇和聚乙二醇单甲醚缩合，减压下共沸脱水，制备了以TMP-SK3为核，PEG或PEGm为臂的三臂星形大分子。

A optimum technology of extracting bioactive components named Iridoids in Eucommia ulmoides was investigated by orthogonal test in this paper.

本文研究了杜仲中具有生物活性的环烯醚萜类化合物的最佳提取工艺。

The results showed that the effects of the oxidized starch and the glutin on solution time in the water were obvious, while the glycerin, sodium laureth sulfate and metacrylic acid ester had less influence.

实验结果表明：氧化淀粉和明胶用量对氧化淀粉改性PVA水溶性薄膜的水溶性影响非常显著，而甘油、十二烷基醚硫酸钠、甲基丙烯酸酯对水溶时间的影响较小。

The preparation of glycoluril and the optimum process conditions are studied lthe effects of different etherates on the content of free formaldehyde in the resulting finishing agents are also compared.

对甘脲树脂的制备及最佳工艺条件进行了研究，比较了各种不同醚化剂对整理剂产品中游离甲醛含量的影响。

Forbesii, monoterpenes and sesquiterpenes account for 41.30% and 32.65%, respectively, in which (1R)-α-pinene (3.98%), sabinene (2.51%),(1S)-β-pinene (5.78%), m-cymene (4.05%), limonene (3.55%), 3, 7-dimethyl-1, 3, 7-octatriene (3.98%),γ-terpinene (8.70%), anisole (1.78%) and (1S)-endo-bornyl acetate (2.62%) as the monoterpenes and its derivatives, and-β-elemene (1.17%),α-bulnesene (1.40%),-β-bisabolene (1.21%),-elemol (1.42%), guaiol (1.14%), dehydroxyisocalamendiol (1.13%),-aristolene (1.99%), bulnesol (9.48%),γ-eudesmol (1.77%), guai-1(10)-en-11-ol (1.12%) and α-bisabolol (5.35 %) as the sesquiterpenes and its derivatives are the main components.

1R-α-蒎烯(3·98 %)、桧烯(2·51 %)、(1S)-β-蒎烯(5·78 %)、m-月桂烯(4·05 %)、柠檬烯(3·55 %)、3，7-二甲基-1，3，7-庚三烯(3·98 %)、γ-萜品烯(8·70 %)、茴香醚(1·78 %)和(1S)-桥环醋酸冰片酯(2·62 %)为单萜类化合物及其衍生物中的主要成分；-β-榄香烯(1·17 %)、异愈创木烯(1·40 %)、-β-没药烯(1·21 %)、-榄香醇(1·42 %)、愈创木醇(1·14 %)、去羟基异菖蒲二醇(1·13 %)、-土青木香烯(1·99 %)、异愈创木醇(9·48 %)、γ-桉醇(1·77 %)、愈创木-1(10)-烯-11-醇(1·12 %)和α-没药醇(5·35 %)为倍半萜类化合物及其衍生物中的主要成分。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。